Ji-won, an ordinary teenage girl, suddenly learns that she is the illegitimate daughter of the chairman of Hanbaek Corporation. Overnight, she is thrown into the world of privilege and sent to a special transfer camp for Cheongdam International High School, an elite school for the rich. But the camp hides a ruthless hierarchy ruled by current students.At its center stands Se-mi, the school’s newly crowned queen, who quickly turns Ji-won into the target of relentless bullying. When Ji-won’s childhood friend Dong-hwa suddenly disappears, she begins to uncover the camp’s dark secret, the program is designed to select “Spare Humans” who will serve the powerful elite. As Ji-won searches for the truth, she must decide whether to survive within the system or challenge it.